Ash-sifter.



J. IRVING, h.

ASH SIFTER; APPLICATION rILL'n AUG. 9, 1907.

2 SHEETS-SHEET 1.

1w: NORRIS PETERS co, WASHINGTON, nc.

; PATENTED DEC. 10, 1907. g 4 V J. IRVING, JR.

ASH SIFTBR. i APPLICATION FILED AUG. 9, 1907.

1K: Mann's PETERS 2., vusmmrmn, n. c.

JOHN IRVING, JR. OF NEW BRIGHTON, NEW YORK.

ASH-SIFTER.

Specification of Letters Patent.

- Application filed August 9. 1907. Serial No. 387.912.

To all whom it may concern:

Be it known that I, JOHN IRVING, Jr., a citizen of the United States,and a resident of New Brighton, Staten Island, in the county of Richmondand State of New York, have invented certain new. and useful Imrovementsin Ash-Sifters, of which the folowing is a specification.

The present invention consists in certain new and useful im rovements inash sifters, and has special re ation to that type of ash sifters knownas gravity sifters.

The principal object of the invention is to provide a novel form ofsifter in which the arran ement of screens and chutes is such that theashes will be thoroughly separated from the cinders, and will beconveyed to an ash receptacle in communication with the lower part ofthe Sifter, and the cinders will be conveyed to a cinder outlet at theside of the said sifter body.

Other and further objects and advanta es will be apparent from thefollowing detai ed description when taken in connection with theaccompanying drawings.

Referring to the accompanying drawings, in which like characters ofreference refer to corresponding parts,-Figure 1 is a side elevation ofthe ash sifter. Fig. 2 is a longitudinal sectional view. Fig. 3 is a topplan view, the cover being removed. Fig. 4 is a transverse sectionalview on line 44 of Fig. 3. Fig. 5 is a detail View of the cinderconveying chute.

Referring to the drawings, 10 designates the ash separating chamber and11 a cover therefor. A hopper 12 is carried by said cover, said hopperbeing preferably located adjacent to one edge thereof. The lower portionof said separating chamber 10 is provided with a contracted bottom 13,terminating in a depending tubular discharging neck 14, which is of asize to permit of being fitted within the open upper end of a suitableash receptacle 15.

Within the separating chamber 10, and secured to the upper edge thereof,is a downwardly inclined separating screen 16, having dependingtherefrom an inverted \l-shaped deflector 17. Said deflector 17 isprovided with vertical guard flanges 1819 which project from theinclined side edges of the said V-sha ed deflector, the arrangementbeing such tiat op ositely extending, downwardly inclined c utes 2021are provided below the said separating screen 16.

By reference to Fig. 2 of the drawings it will be observed that thelower end of the inclined separatin screen 16 does not extend entirelyacross the separating chamber 10, a space being left between said endand the rear wall of the said chamber to admit of the fall of cinders atthis point. Secured to the rear wall of the separating chamber 10, at apoint just below the lower, inner discharging end of theseparating'screen 16, is .a cinder.

conveying screen 22, which is inclined in a direction opposite to thatof'said separating screen 16. The lower end of said cinder conveyingscreen 22 is attached to a rectangular supporting frame 23, which isdetachably and snugly fitted within the entrance of a cinder outletchute 24, carried by and pro: jecting outwardly from the side .portion'of the separating chamber 10. By reference to Fig; 5 of 'the drawings itwill be observed that the said cinder conveying screen 22 is providedwith upturned side flanges 2526 which increase in height as theyapproach the lower end of said screen, at which oint the said frame 23,to w ch their ends are secured.

The separati screen 15 is preferably formed of space wire rods that areall ar ranged in the same plane and have their ends secured to a stripof sheet metal a which is Patented Dec. 10, 1907. I

they are of the same height as the heig t of provided with'a dependingflange b, to the lower portion of which the side guard flanges 1818 ofthe chutes 2021 are fastened.v

The upper portion of said flange 1 is attached to the side of theseparating chamber 10 by means of rivets or other suitable fastenimeans, and forms the means whereby sai screen 15 and its chutes 20-21are held in their operative positions.

The cinder conveying screen is also preferably formed of s aced apartwire rods, the

upper ends of wh1ch are fastened to a strip of 1 sheet metal 0, which inturn is securely fastened to the side of the se arating chamber 10 justbelow the lower en of the separating screen 10. .The lower ends of thewire rods are fastened to the bottom and sides of the rectangular frame23 so as to provide the side guards 25 '-26 which at their lower endsare of a height substantially the same as the height of the said rectaular frame 23, from which point they gradual y decrease in height untilthey reach the upper ends where they 110 are all in substantially thesame plane.

While in the foregoing description I have referred to the separatingscreen 16 and the cinder conveying screen 22 as bei or formedor otherforaminous material.

In using the ash sifter the material is poured into the hopper 12 anddrops onto the upper inclined separating screen 16. In sliding down saidseparatin screen, the material is sifted, the ashes fal ing through thescreen and onto the chutes 2021, from which it dro s down through thetubular discharge nee 14 and into the ash receptacle 15. The cindersfall over the lower end of the separating screen 16 onto the cinderconveying screen 22 and slide down it and through the outlet chute 24,where they are received in a suitable receptacle (not shown). passage ofthe cinders down the screen 22, all ashes or the like are thoroughlyseparated therefrom and drop through the screen and into the ashreceptacle.

From the foregoin description it will be seen that the materia to besifted undergoes two separate and distinct screen operations, the firstb r means of the upper separating screen, and the second by means of thelower cinder conveying screen. And it will be seen that as the twoinclined chutes 2021 straddle the lower cinder conve 'ng screen, thematerial assing down said chutes will be conducte away from said screen,all danger of the material falling over the sides of said chutes beingovercome by means of the side guard flanges 18 19.

I claim as my invention:

1. An ash sifter consistingof a separating chamber having a bottomdischarge neck adapted to be fitted within an ash receptacle, an upperinclined screen having depending therefrom inclined chutes provided with(guard flanges, a lower screen inclined in a irection opposite to' thatof said upper screen, and an outlet chute with which said lower screencommunicates.

2. An ash sifter consisting of a separating During the A svaoee chamberprovided with a contracted lower portion terminating in a'tubulardischarge neck, oppositely arra ed inclined screens within saidseparating c amber, said screens bein located one above the other,chutes depen ing from the upper of said screens and rovided withvertical uard flanges, the Ihwer screen bein provi ed with upturnedsides, and an ouflet chute with which the lower of said screens is incommunication.

3. An ash sifter consisting of a separating chamber provided with acontracted lower portion terminating in a depending tube, a

cover for said separati "chamber provided i with a hop er, op osite yarranged inclined screens witiiin saicfse arating chamber, said screensbeing located one above the other, oppositely inclined chutes providedwith guard flalhges de ending from the upper screen an stra flangescarried by outlet chute with communication.

4. An ash sifter consisti of a separating chamber, an upper screen, aower screen provided with an end supporting frame and having its sidesupturned to form tapering flanges, and inclined chutes carried by saidupper screen and being provided with guard flanges and having theirlower ends arranged to straddle the lower screen.

5. An ash sifter consisting of a separating chamber, an upper screen, alower screeninclined in a direction 0 posite to that of the upper screenand provi ed with a rectangular end su porting frame and having itssides upturned to form flanges which decrease 1n height as they approachthe upper end of said screen, and oppositely inclined chutes rovidedwith vertical uard flanges carrie by said upper'screen and having theirlower ends arranged to straddle said lower screen.

Signed at New York in the county of New York and State of New York thisfirst day of August, A. D. 1907.

JOHN IRVING, JR., Witnesses:

EGBERT V. NELSON, JAMES PHILLIPS.

dling the lower screen,

